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Development of novel monitoring system for quorum sensing mediators in Gram-negative bacteria

Research Project

Project/Area Number 20590041
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical pharmacy
Research InstitutionNihon University

Principal Investigator

MIYAIRI Shinichi  Nihon University, 薬学部, 教授 (50209855)

Co-Investigator(Kenkyū-buntansha) SAITO Hiroaki  日本大学, 薬学部, 助教 (30385976)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsグラム陰性菌 / 緑膿菌 / クオラムセンシング / オートインデューサー / 高速液体クロマトグラフィー / 蛍光誘導体化 / エラスターゼ活性測定法 / 蛍光標識化試薬 / エラスターゼ / ピオシアニン / マクロライド系抗生物質 / 毒性発現因子 / エラスターゼ合成基質 / ELISA
Research Abstract

In this project we have developed a convenient and simultaneous determination system of 3-oxo-acyl-HSLs, those are autoinducer molecules of Gram-negative bacteria, by high-performance liquid chromatography with fluorescence derivatization. Then we have clarified the relation of AI concentration, elastase activity and cell density using Pseudomonas aeruginosa, one of Gram-negative bacteria. The results are that AI concentration was well synchronized with cell growth and there were 2 hours-time lag between increasing of AI concentration and that of elastase activity.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (10 results)

All 2011 2010 2009 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Roles of Pseudomonas aeruginosa autoinducers and their degradation products, tetramic acids, in bacterial survival and behavior in ecological niches.2011

    • Author(s)
      N.Hosono, S.Kimura, K.Tateda, M.Horikawa, C.Ueda, Y.Ishii, M.Ishiguro, S.Miyairi, K.Yamaguchi
    • Journal Title

      Microbes and Environments

    • NAID

      10029122954

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Roles of Pseudomonas aeruginosa Autoinducers and their Degradation Products, Tetramic acids, in Bacterial Survival and Behavior in Ecological Niches.2011

    • Author(s)
      N.Hosono, S.Kimura K.Tateda, M.Horikawa, C.Ueda, Y.Ishii, M.Ishiguro, S.Miyairi, K.Yamaguchi
    • Journal Title

      Microbes and Environments

      Volume: (Web公開3月29日)

    • NAID

      10029122954

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pseudomonas aeruginosa Las quorum sensing autoinducer suppresses growth and biofilm production in Legionella species.2009

    • Author(s)
      S.Kimura, K.Tateda, Y.Ishii, M. Horikawa, S.Miyairi, N.Gotoh, M.Ishiguro, K.Yamaguchi
    • Journal Title

      Microbiology 155

      Pages: 1934-1939

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Pseudomonas aeruginosa Las quorum sensing autoinducer suppresses growth and biofilm production in Legionella species2009

    • Author(s)
      S.Kimura, K.Tateda, Y.Ishii, M.Horikawa, S.Miyairi, N.Gotoh, M.Ishiguro, K.Yamaguchi
    • Journal Title

      Microbiology 155

      Pages: 1934-1939

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 緑膿菌のクオラムセンシング機構研究のための発蛍光性プローブの開発2011

    • Author(s)
      横田康男、小倉知佳、三上泰輝、市丸嘉、齋藤弘明、内山武人、宮入伸一
    • Organizer
      日本薬学会第131年会
    • Year and Date
      2011-03-31
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] グラム陰性菌のオートインデューサーである3-オキソ脂肪酸のホモセリンラクトン誘導体の一斉分析法の開発2010

    • Author(s)
      三上泰輝、齋藤弘明、横田康男、三宅宗晴、内山武人、高畠亨、宮入伸一
    • Organizer
      日本薬学会第130年会
    • Place of Presentation
      岡山
    • Year and Date
      2010-03-29
    • Related Report
      2010 Final Research Report
  • [Presentation] グラム陰性菌のオートインデューサーである3-オキソ脂肪酸のホモセリンラクトン誘導体の一斉分析法の開発2010

    • Author(s)
      三上泰輝, 齋藤弘明, 横田康男, 三宅宗晴, 内山武人, 高畠亨, 宮入伸一
    • Organizer
      日本薬学会第130年回
    • Place of Presentation
      桃太郎アリーナ(岡山市)
    • Year and Date
      2010-03-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] Inhibition of Pseudomonas aeruginosa quorum sensing system by acyl HSL analogs2009

    • Author(s)
      齋藤弘明、宮入伸一
    • Organizer
      第25回内藤コンファレンス「ケミカルバイオロジー[II]」
    • Place of Presentation
      札幌
    • Year and Date
      2009-09-10
    • Related Report
      2010 Final Research Report 2009 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.pha.nihon-u.ac.jp/page.jsp?id=1391

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://www.pha.nihon-u.ac.jp/page.jsp?id=1391

    • Related Report
      2010 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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